Latex from some plants, such as dandelions and members of the Hevea genus, contains isoprenes, which naturally polymerize as the latex congeals, forming a water-resistant material. Using heat to dry the latex increases the polymerization. In 1839, Charles Goodyear discovered that adding sulfur while curing latex made the final product more durable.
Those of us who grew up in the 20th Century remember seeing the UL tags and labels with the legend, “Tested by Underwriters Laboratories” on almost all new electrical products. We knew the device should be safe if used as recommended.
Intertek is an international corporation whose business is testing, evaluation and certification of products and their manufacturing processes for safety, performance, and verification of claims.
The focus of the Sustainable Furnishings Council extends from how raw materials are collected to how finished products are delivered and set up. At the starting point is whether harvesting of wood and other biological materials is a self-sustaining process. This means not destroying rainforests and mountain timberlands, but balancing harvesting with new and continuing growth.
A pain in the neck is a rather common term in our language, used for persons, things or situations that cause or exacerbate problems. It does have roots in reality. Stressful situations cause tension. In response, our muscles tense up, including neck muscles. And neck tension is a cause of both neck aches and headaches. I
How the Right Pillow Can Help Aleviate Snoring Snoring isn’t just a nuisance for the other people in the house who are trying to sleep. It can also be a health hazard. Sleep Apnea – Most Common Cause of Snoring If your snoring is a result of apnea (stopping breathing…